передовий авіанавідник, офіцер передового посту наведення авіації (FAC. Forward air controller. Highly sought-after job, he explained. FACs were tasked with orchestrating all air power, giving cover to lads on the ground, calling in raids – not to mention rescues, medevacs, the list went on. - Harry, The Duke of Sussex, Prince. Spare, pp. 125-126)
forward air controller (airborne) FAC(A)
terminal attack controller (TAC) (= forward air controller)
proportional–integral–derivative controller (PID controller / three-term controller)
proportional–integral–derivative controller / PID Controller / three-term controller
ground-based forward air controller
forward observer (FO), forward observation officer; (artillery) observer / spotter
forward area air defense command, control, communications and intelligence (FAAD C3I)